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It's a tiny pellet about the size of fine couscous. Guppies have no problem swallowing them whole. They go after them like sharks, they absolutely love them. None ever make it to the bottom.

Even though I'm not feeding them this exclusively, their colours are deepening and their tails are growing since I started feeding this - even the adults. It doesn't seem to bloat them up and it doesn't cloud the water.

Comes in a crazy-small package (0.77 oz, 22 g) but it seems to be lasting quite a long time. Nice standup package with a ziplock closure too.